Disagree with you. He, himself, said that he will speak on stem cell research. For what it's worth, he said that he is not a member of either party, registered independent.
Blah, blah, blah. These people always like to say they're independents. I don't care how someone is registered. The question is who they support, with their votes and their speech. Ron clearly intends to attack Bush and help Kerry, and in so doing, he betrays his father's legacy less than a year after his death. Any way you look at it, it's disgraceful. I'm sure part of his motivation is indeed to promote stem-cell research. But that's not all of it, by a long shot. He should have shown far more restraint, and should also find a better way to promote his supposed issue.
But again, he has more "issues" than that, in both senses of the word.